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CompTIA N10-009 Exam Syllabus Topics:

Topic
Details

Topic 1

Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.

Topic 2

OSI reference model concepts, Comparison of networking appliances, applications, and functions

Topic 3

Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.

Topic 4

Selection and configuration of wireless devices.

Topic 5

Cloud concepts and connectivity options, and Common networking ports.

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CompTIA Network+ Certification Exam Sample Questions (Q150-Q155):

NEW QUESTION # 150
Which of the following connector types would most likely be used to connect to an external antenna?

A. ST
B. BNC
C. MPO
D. LC

Answer: B

Explanation:
BNC connectors are commonly used for coaxial cables, including those connecting to external antennas in Wi- Fi, radio, and surveillance systems.
Breakdown of Options:
A: BNC - Correct answer. Used for coaxial cables in wireless and antenna connections.
B: ST - Used for fiber optic cables, not antennas.
C: LC - A fiber optic connector, not for antennas.
D: MPO - Used for multi-fiber optic cables, not RF antennas.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.1: Compare and contrast physical network connectors.
IEEE 802.11: Wireless standards and antenna connectors

NEW QUESTION # 151
Which of the following attacks would most likely cause duplicate IP addresses in a network?

A. Social engineering
B. DNS poisoning
C. Rogue DHCP server
D. Denial-of-service

Answer: C

Explanation:
Definition of a Rogue DHCP Server:
A rogue DHCP server is an unauthorized DHCP server on a network, which can assign IP addresses to devices without proper control, leading to IP address conflicts.
Impact of a Rogue DHCP Server:
IP Address Conflicts: Multiple devices may receive the same IP address from different DHCP servers, causing network connectivity issues.
Network Disruption: Devices may be assigned incorrect network configuration settings, disrupting network services and connectivity.

NEW QUESTION # 152
Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?

A. VPN
B. Internet gateway
C. Direct Connect
D. Captive portal

Answer: C

Explanation:
Direct Connect refers to a dedicated network connection between an on-premises network and a cloud service provider (such as AWS Direct Connect). This link bypasses the public internet, providing a more reliable and higher-bandwidth connection. It may not inherently include encryption because it relies on the security measures of the dedicated physical connection itself. In contrast, other options like VPN typically involve encryption as they traverse the public internet.
Reference:
CompTIA Network+ full course material indicates that Direct Connect type services offer dedicated, private connections which might not include encryption due to the dedicated and secure nature of the link itself.

NEW QUESTION # 153
Which of the following network devices converts wireless signals to electronic signals?

A. Access point
B. Load balancer
C. Firewall
D. Router

Answer: A

Explanation:
* Role of an Access Point (AP):
* Wireless to Wired Conversion: An access point (AP) is a device that allows wireless devices to connect to a wired network using Wi-Fi. It converts wireless signals (radio waves) into electronic signals that can be understood by wired network devices.
* Functionality:
* Signal Conversion: The AP receives wireless signals from devices such as laptops, smartphones, and tablets, converts them into electronic signals, and transmits them over the wired network.
* Connectivity: APs provide a bridge between wireless and wired segments of the network, enabling seamless communication.
* Comparison with Other Devices:
* Router: Directs traffic between different networks and may include built-in AP functionality but is not primarily responsible for converting wireless to electronic signals.
* Firewall: Protects the network by controlling incoming and outgoing traffic based on security rules, not involved in signal conversion.
* Load Balancer: Distributes network or application traffic across multiple servers to ensure reliability and performance, not involved in signal conversion.
* Deployment:
* APs are commonly used in environments where wireless connectivity is needed, such as offices, homes, and public spaces. They enhance mobility and provide flexible network access.

NEW QUESTION # 154
An organization requires the ability to send encrypted email messages to a partner from an email server that is hosted on premises. The organization prefers to use the standard default ports when creating firewall rules. Which of the following ports should be open to satisfy the requirements?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
Port 587 is the standard default port for sending email (SMTP) with TLS encryption, which is used to secure email transmissions between mail servers or between clients and mail servers. Allowing traffic over port 587 enables secure email sending while maintaining standard protocol usage. (Reference: CompTIA Network+ Study Guide, Chapter on Ports and Protocols)

NEW QUESTION # 155
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